/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/PropertySets/PolygroupLayersProperties.h
Basic Tool Property Set that allows for selecting from a list of FNames (that we assume are Polygroup Layers)
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UPolygroupLayersProperties : public [UInteractiveToolPropertySet](API\Runtime\InteractiveToolsFramework\UInteractiveToolPropertySet)
FName
ActiveGroupLayer
Select PolyGroup layer to use.
TArray<FString...
GroupLayersList
Internal list used to implement above